protototypes. Thanks to: John Dallaway <jld@ecoscentric.com>.
* include/shlwapi.h: New file. Thanks to: Mattia Barbon <mbarbon@dsi.unive.it> and Victor Porton <porton@narod.ru> for contributions. * lib/shlwapi.def: New file. * lib/test.c: #include shlwapi.h.